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Which transformation occurs because alpha decay destabilizes isotopes?

A)Atomic mass number decreases.
B)Nuclear charge number increases.
C)Electron shielding effects strengthen.
D)Chemical reaction rates decrease.

💡 Explanation

Alpha decay releases helium nuclei, therefore resulting in a decrease to the atomic mass number of the decaying isotope because the isotope loses 4 nucleons, rather than resulting in an increased nuclear charge.

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